Answer:

24°

Step-by-step explanation:

(the total angle of a triangle is always 180°)

2n+5n+8n=180

          15n=180

              n=

              n=12

(to find for the smallest angle multiply 2 with n, but instead of n substitute the variable with 12)

2n

2(12)

24

to check:

        2n+5n+8n=180

2()12+5(12)+8(12)=180

        24+60+96=180

               84+96=180

                    180=180